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Cosmic Events

Black Hole Mergers Supernova Observations Gamma-Ray Emissions Gamma-ray Burst Phenomena Supernova Explosions Star Mergers Star Formation Black Hole Formation

Astronomers Measure First Black-Hole Recoil, Tracing Newborn’s 3D Flight From 2019 Merger

High-order harmonics in event GW190412 let researchers derive a roughly 50 km/s kick solely from gravitational-wave data.

Day-Long, Repeating Gamma-Ray Burst Outside Milky Way Defies Existing Models